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torben |
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/*! |
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* jQuery UI Selectable 1.10.3 |
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* http://jqueryui.com |
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* |
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* Copyright 2013 jQuery Foundation and other contributors |
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* Released under the MIT license. |
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* http://jquery.org/license |
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* |
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* http://api.jqueryui.com/selectable/ |
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* |
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* Depends: |
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* jquery.ui.core.js |
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* jquery.ui.mouse.js |
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* jquery.ui.widget.js |
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*/ |
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(function( $, undefined ) { |
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$.widget("ui.selectable", $.ui.mouse, { |
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version: "1.10.3", |
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options: { |
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appendTo: "body", |
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autoRefresh: true, |
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distance: 0, |
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filter: "*", |
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tolerance: "touch", |
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// callbacks |
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selected: null, |
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selecting: null, |
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start: null, |
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stop: null, |
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unselected: null, |
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unselecting: null |
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}, |
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_create: function() { |
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var selectees, |
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that = this; |
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this.element.addClass("ui-selectable"); |
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this.dragged = false; |
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// cache selectee children based on filter |
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this.refresh = function() { |
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selectees = $(that.options.filter, that.element[0]); |
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selectees.addClass("ui-selectee"); |
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selectees.each(function() { |
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var $this = $(this), |
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pos = $this.offset(); |
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$.data(this, "selectable-item", { |
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element: this, |
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$element: $this, |
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left: pos.left, |
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top: pos.top, |
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right: pos.left + $this.outerWidth(), |
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bottom: pos.top + $this.outerHeight(), |
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startselected: false, |
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selected: $this.hasClass("ui-selected"), |
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selecting: $this.hasClass("ui-selecting"), |
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unselecting: $this.hasClass("ui-unselecting") |
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}); |
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}); |
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}; |
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this.refresh(); |
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this.selectees = selectees.addClass("ui-selectee"); |
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this._mouseInit(); |
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this.helper = $("<div class='ui-selectable-helper'></div>"); |
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}, |
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_destroy: function() { |
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this.selectees |
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.removeClass("ui-selectee") |
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.removeData("selectable-item"); |
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this.element |
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.removeClass("ui-selectable ui-selectable-disabled"); |
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this._mouseDestroy(); |
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}, |
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_mouseStart: function(event) { |
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var that = this, |
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options = this.options; |
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this.opos = [event.pageX, event.pageY]; |
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if (this.options.disabled) { |
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return; |
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} |
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this.selectees = $(options.filter, this.element[0]); |
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this._trigger("start", event); |
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$(options.appendTo).append(this.helper); |
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// position helper (lasso) |
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this.helper.css({ |
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"left": event.pageX, |
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"top": event.pageY, |
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"width": 0, |
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"height": 0 |
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}); |
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if (options.autoRefresh) { |
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this.refresh(); |
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} |
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this.selectees.filter(".ui-selected").each(function() { |
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var selectee = $.data(this, "selectable-item"); |
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selectee.startselected = true; |
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if (!event.metaKey && !event.ctrlKey) { |
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selectee.$element.removeClass("ui-selected"); |
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selectee.selected = false; |
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selectee.$element.addClass("ui-unselecting"); |
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selectee.unselecting = true; |
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// selectable UNSELECTING callback |
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that._trigger("unselecting", event, { |
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unselecting: selectee.element |
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}); |
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} |
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}); |
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$(event.target).parents().addBack().each(function() { |
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var doSelect, |
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selectee = $.data(this, "selectable-item"); |
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if (selectee) { |
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doSelect = (!event.metaKey && !event.ctrlKey) || !selectee.$element.hasClass("ui-selected"); |
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selectee.$element |
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.removeClass(doSelect ? "ui-unselecting" : "ui-selected") |
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.addClass(doSelect ? "ui-selecting" : "ui-unselecting"); |
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selectee.unselecting = !doSelect; |
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selectee.selecting = doSelect; |
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selectee.selected = doSelect; |
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// selectable (UN)SELECTING callback |
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if (doSelect) { |
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that._trigger("selecting", event, { |
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selecting: selectee.element |
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}); |
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} else { |
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that._trigger("unselecting", event, { |
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unselecting: selectee.element |
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}); |
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} |
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return false; |
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} |
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}); |
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}, |
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_mouseDrag: function(event) { |
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this.dragged = true; |
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if (this.options.disabled) { |
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return; |
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} |
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var tmp, |
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that = this, |
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options = this.options, |
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x1 = this.opos[0], |
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y1 = this.opos[1], |
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x2 = event.pageX, |
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y2 = event.pageY; |
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if (x1 > x2) { tmp = x2; x2 = x1; x1 = tmp; } |
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if (y1 > y2) { tmp = y2; y2 = y1; y1 = tmp; } |
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this.helper.css({left: x1, top: y1, width: x2-x1, height: y2-y1}); |
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this.selectees.each(function() { |
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var selectee = $.data(this, "selectable-item"), |
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hit = false; |
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//prevent helper from being selected if appendTo: selectable |
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if (!selectee || selectee.element === that.element[0]) { |
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return; |
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} |
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if (options.tolerance === "touch") { |
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hit = ( !(selectee.left > x2 || selectee.right < x1 || selectee.top > y2 || selectee.bottom < y1) ); |
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} else if (options.tolerance === "fit") { |
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hit = (selectee.left > x1 && selectee.right < x2 && selectee.top > y1 && selectee.bottom < y2); |
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} |
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if (hit) { |
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// SELECT |
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if (selectee.selected) { |
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selectee.$element.removeClass("ui-selected"); |
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selectee.selected = false; |
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} |
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if (selectee.unselecting) { |
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selectee.$element.removeClass("ui-unselecting"); |
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selectee.unselecting = false; |
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} |
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if (!selectee.selecting) { |
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selectee.$element.addClass("ui-selecting"); |
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selectee.selecting = true; |
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// selectable SELECTING callback |
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that._trigger("selecting", event, { |
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selecting: selectee.element |
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}); |
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} |
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} else { |
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// UNSELECT |
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if (selectee.selecting) { |
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if ((event.metaKey || event.ctrlKey) && selectee.startselected) { |
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selectee.$element.removeClass("ui-selecting"); |
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selectee.selecting = false; |
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selectee.$element.addClass("ui-selected"); |
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selectee.selected = true; |
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} else { |
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selectee.$element.removeClass("ui-selecting"); |
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selectee.selecting = false; |
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if (selectee.startselected) { |
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selectee.$element.addClass("ui-unselecting"); |
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selectee.unselecting = true; |
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} |
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// selectable UNSELECTING callback |
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that._trigger("unselecting", event, { |
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unselecting: selectee.element |
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}); |
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} |
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} |
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if (selectee.selected) { |
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if (!event.metaKey && !event.ctrlKey && !selectee.startselected) { |
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selectee.$element.removeClass("ui-selected"); |
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selectee.selected = false; |
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selectee.$element.addClass("ui-unselecting"); |
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selectee.unselecting = true; |
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// selectable UNSELECTING callback |
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that._trigger("unselecting", event, { |
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unselecting: selectee.element |
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}); |
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} |
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} |
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} |
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}); |
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return false; |
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}, |
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_mouseStop: function(event) { |
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var that = this; |
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this.dragged = false; |
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$(".ui-unselecting", this.element[0]).each(function() { |
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var selectee = $.data(this, "selectable-item"); |
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selectee.$element.removeClass("ui-unselecting"); |
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selectee.unselecting = false; |
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selectee.startselected = false; |
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that._trigger("unselected", event, { |
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unselected: selectee.element |
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}); |
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}); |
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$(".ui-selecting", this.element[0]).each(function() { |
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var selectee = $.data(this, "selectable-item"); |
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selectee.$element.removeClass("ui-selecting").addClass("ui-selected"); |
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selectee.selecting = false; |
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selectee.selected = true; |
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selectee.startselected = true; |
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that._trigger("selected", event, { |
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selected: selectee.element |
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}); |
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}); |
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this._trigger("stop", event); |
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this.helper.remove(); |
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return false; |
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} |
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}); |
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})(jQuery); |
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